序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 用于产生全息图图案的设备和方法 CN201310378723.0 2013-08-27 CN103838121A 2014-06-04 魏浩千; 李硕; 南东暻
发明提供了一种用于产生全息图图案的设备和方法。所述设备和方法使用减小量的计算来产生全息图图案。所述设备可包括:参考深度层设置单元,被构造为或具有使用与三维(3D)对象相关的数据设置参考深度层的能;第一全息图图案产生单元,被构造为在参考深度层中产生与3D对象相应的第一全息图图案;第二全息图图案产生单元,被构造为使用第一全息图图案在全息图平面中产生第二全息图图案。
2 数据验证方法和设备 CN200480035729.7 2004-10-01 CN1922614A 2007-02-28 大卫·温特博特姆; 约翰·D·威尔特; 本·鲍梅克
发明通常涉及验证数据的方法和设备,特别涉及全息数据载体和用来创建这种数据载体的设备,以及涉及验证全息数据载体上存储的数据的方法。数据载体包括:存储数据的全息图,以重现个体的一部分人体特征的图像;以及第二数据承载装置;其中,所述第二数据承载装置存储的数据可使用在所述全息图中存储的数据来验证。
3 Three-dimensional color image recording device JP2005305501 2005-10-20 JP2007114463A 2007-05-10 KUHARA TAKASHI; SATO KUNIHIRO
PROBLEM TO BE SOLVED: To provide a device for recording a three-dimensional color image by holography, the device, having a simple system configuration that can accurately shift the phase of reference light at a high speed and moreover, simultaneously can record a color phase shift hologram. SOLUTION: A lattice fringe is displayed on a spatial optical modulation element 4 such as a liquid crystal panel or a digital mirror device panel, which is irradiated with a laser light in primary three colors of red, green and blue, and first-order diffracted light generated by the lattice fringe is used as reference light 5 for image recording. By moving the lattice fringe on the spatial optical modulation element 4 over the element, phases in the diffracted light are shifted due to the movement of the fringe, and the phase shift amount of the light is proportional only to the moving distance of the pattern and independent of the wavelength of light. COPYRIGHT: (C)2007,JPO&INPIT
4 Computer hologram, and its formation JP1774999 1999-01-26 JP2000214751A 2000-08-04 HAMANO TOMOTSUNE; KITAMURA MITSURU
PROBLEM TO BE SOLVED: To improve the color reproducibility in the case of reproduction of it with white light. SOLUTION: M pieces of unit regions are defined and the hologram image of an original image consisting of M pieces of spot light sources P1 to PM is recorded on a recording medium 20. The m-th unit region (m=1 to M) is divided into three divided regions Cmr, Cmg and Cmb. The red information of the spot light source Pm is recorded in the region Cmr, the green information of the spot light source Pm in the region Cmg, and the blue information of the spot light source Pm in the region Cmb, respectively. A virtual light source (the white light illumination light Lw made incident at a uniform angle α) and a virtual visual point E anticipated to be used at the time of reproduction are defined. At the time of recording, the computation defining the reference light respectively having different incident angles with each of the respective divided region is executed and the reconstructing light having the color information recorded in the respective divided regions is made to gather at the virtual visual point E when the reproduction is executed by using the virtual light source Lw.
5 Hologram recorder JP14127693 1993-05-21 JPH06332358A 1994-12-02 KOBAYASHI KEN; ASAKURA TSUTAE; FURUYA MASATO; TERAI YOSHITANE
PURPOSE: To provide the recorder capable of well recording holograms within the dynamic range of a recording medium. CONSTITUTION: The optical image of a subject is formed on the photoconductive layer member of a spatial light modulating element SLM and the electric field corresponding thereto is applied on a light modulating material layer member. While the reading out light made incident on the light modulating material layer member from a light source for reading out light is passed back and forth through the light modulating material layer member, the light changed in the state of the light by the electric field corresponding to the optical image of the subject is passed through a random phase shift layer which is so provide as to be in contact with the other construction member in the passage of the reading out light and changes the phase of the reading out light at random with respect to the cross sectional direction of the passage and is emitted as object waves from the spatial light modulating element SLM in the state that the read out Fresnel diffraction waves are effectively dispersed. The hologram of image information is well formed on the recording medium H by these object waves and reference waves in such a manner that the hologram is confined within the dynamic range thereof. In addition, the object waves are applied via a Fourier transform lens Lf of the recording medium H and the reference waves are applied thereon, thereby, the hologram of the image information is well formed on the recording medium H so as to be confined within the dynamic range thereof. COPYRIGHT: (C)1994,JPO
6 METHOD FOR OBSERVING A SAMPLE US15577129 2016-05-26 US20180210395A1 2018-07-26 Cedric ALLIER; Thomas BORDY; Olivier CIONI; Lionel HERVE; Sophie MOREL
A method for observing a sample is provided, including illuminating the sample with a light source and forming a plurality of images, by an imager, the images representing the light transmitted by the sample in different spectral bands. From each image, a complex amplitude representative of the light wave transmitted by the sample is determined in a determined spectral band. The method further includes backpropagation of each complex amplitude in a plane passing through the sample, determining a weighting function from the back-propagated complex amplitudes, propagating the weighting function in a plane along which the matrix photodetector extends, updating each complex amplitude, in the plane of the sample, according to the weighting function propagated.
7 Apparatus for detecting a 3D structure of an object US14717282 2015-05-20 US09835435B2 2017-12-05 Alexander Knüttel
Apparatus for detecting a 3D structure of an object, comprising at least three laser emitters and a beam splitter that splits the laser radiation of the laser emitters into a reference radiation and an illumination radiation. The illumination radiation strikes the object to be measured, is reflected by the object as object radiation and interferes with the reference radiation. A detector receives the interference patterns formed from the interference of the reference and object radiation and an analysis unit analyzes the interference patterns. At least two of the laser emitters emit laser radiation in the invisible range and the analysis unit detects the object in three dimensions based on the interference patterns of the invisible laser radiation. At least one of the laser emitters emits colored laser radiation and the analysis unit deduces the object's color based on the intensity of the colored object radiation reflected by the object.
8 Apparatus and method for performing in-line lens-free digital holography of an object US15039549 2014-12-02 US09811051B2 2017-11-07 Richard Stahl; Murali Jayapala; Andy Lambrechts; Geert Vanmeerbeeck
The present disclosure relates to apparatuses and methods for performing in-line lens-free digital holography of objects. At least one embodiment relates to an apparatus for performing in-line lens-free digital holography of an object. The apparatus includes a point light source adapted for emitting coherent light. The apparatus also includes an image sensing device adapted and arranged for recording interference patterns resulting from interference from light waves directly originating from the point light source and object light waves. The object light waves originate from light waves from the point light source that are scattered or reflected by the object. The image sensing device comprises a plurality of pixels. The point light source comprises a broad wavelength spectrum light source and a pinhole structure. The image sensing device comprises a respective narrow band wavelength filter positioned above each pixel that filters within a broad wavelength spectrum of the point light source.
9 Apparatus and Method for Performing In-Line Lens-Free Digital Holography of an Object US15039549 2014-12-02 US20170031318A1 2017-02-02 Richard Stahl; Murali Jayapala; Andy Lambrechts; Geert Vanmeerbeeck
The present disclosure relates to apparatuses and methods for performing in-line lens-free digital holography of objects. At least one embodiment relates to an apparatus for performing in-line lens-free digital holography of an object. The apparatus includes a point light source adapted for emitting coherent light. The apparatus also includes an image sensing device adapted and arranged for recording interference patterns resulting from interference from light waves directly originating from the point light source and object light waves. The object light waves originate from light waves from the point light source that are scattered or reflected by the object. The image sensing device comprises a plurality of pixels. The point light source comprises a broad wavelength spectrum light source and a pinhole structure. The image sensing device comprises a respective narrow band wavelength filter positioned above each pixel that filters within a broad wavelength spectrum of the point light source.
10 Systems and methodologies related to generating projectable data for 3-D viewing US13953371 2013-07-29 US09354606B1 2016-05-31 James A. Georges, III
Methodologies and systems for generating data that can be used to provide 3-D imaging for one or more viewers are described. In some implementations, images and depth information are obtained from objects. Processing systems are disclosed for producing from these images and depth information data that can be used by projectors to project images that appear in 3-D.
11 APPARATUS AND METHOD FOR GENERATING HOLOGRAM PATTERN US13886816 2013-05-03 US20140146373A1 2014-05-29 Ho Cheon WEY; Seok LEE; Dong Kyung NAM
Provided is an apparatus and method for generating a hologram pattern with a reduced amount of computation. The apparatus may include a reference depth layer setting unit configured or having a capacity to set a reference depth layer using data associated with a three-dimensional (3D) object, a first hologram pattern generating unit configured to generate a first hologram pattern corresponding to the 3D object in the reference depth layer, and a second hologram pattern generating unit configured to generate a second hologram pattern in a hologram plane using the first hologram pattern.
12 METHOD OF RECONSTRUCTING A HOLOGRAPHIC IMAGE AND APPARATUS THEREFOR US13712787 2012-12-12 US20130148183A1 2013-06-13 William J Dallas; Chung-Chieh Yu; Isao Matsubara
An apparatus and method of image reconstruction are disclosed. The method includes first breaking a holographic image into a plurality of interlaced sample sets corresponding to color separation images; and independently sampling, filtering, and reconstructing all sets. The resulting demodulated images contain no fringes. Notably, range-clipped tonal rendering curves are used to choose pixel regions of the demodulated images that will replace saturated regions. The image is reconstructed by integrating all un-saturated images into one.
13 Generation Method For Complex Amplitude In-Line Hologram and Image Recording Device Using Said Method US13574565 2010-12-22 US20120294136A1 2012-11-22 Kunihiro Sato
A method for generating a complex amplitude in-line hologram and an image recording device using said method makes it possible to realize high-speed processing and high-speed recording from a single off-axis hologram without limiting the spatial frequency band and without creating errors from interpolation. The complex amplitude in-line hologram is generated by performing the following in order: the acquisition of data for one off-axis hologram obtained by way of off-axis holography, and for an off-axis reference light used for obtaining the hologram; the setting of a reconstruction in-line reference light; a modulation process for performing spatial heterodyne modulation on the hologram on the basis of the phases of the reference lights; and a filtering process for performing spatial frequency filtering on the hologram modulated by the modulation process. Because spatial sampling is not performed, the limits on the viewing angle are relaxed.
14 Subject plate for recording holograms, hologram-making method, and hologram-recorded article US09541005 2000-03-31 US06309735B1 2001-10-30 Kenji Ueda; Shigehiko Tahara; Takehiko Anegawa; Akio Morii
The invention provides a hologram-recording subject plate comprising a block and a variety of subjects fixedly contained therein, which ensures easy, stable yet continuous recording of a multiplicity of identical holograms or different holograms reconstructible by illuminating light as is the case with a hologram-replicating method, a hologram-making method using the same, and a hologram-recorded article. The subject plate comprises a transparent solid block 5 and a hologram-recording subject S contained therein. A photosensitive material film 1 is applied directly onto one surface of the subject plate, and the subject plate is then irradiated with laser light 7 through the photosensitive material film 1. Such simple operation enables a multiplicity of identical holograms to be recorded in an easy, stable yet continuous manner.
15 Holographic authentication element and document having holographic authentication element formed thereon US09388309 1999-09-01 US06222650B1 2001-04-24 Michael D. Long
Device, method, and system for recording diffractive high resolution text, pictorial, and/or other graphical information is provided which is particularly suited to recording information that would be difficult to reproduce by typical counterfeiting methods. The information recorded may be used to authenticate the recorded item, or indirectly, an item to which the recording is attached. Such items may include legal, financial and commercial instruments, credit cards, and packaging for such items as software, art, and other items where forgery of the item may be a concern. In one embodiment of the invention light is selectively passed by a shutter, and a spatial filter then cleans the beam to remove undesirable frequency components. A liquid crystal display (LCD) dynamically receives a data stream from a computer where each of the displayed data values presents an optical characteristic (for example density, phase, or polarization) to the filtered beam and causes diffraction into a plurality of diffracted beams, the character of which is dependent on the data displayed. A mask selectively passes only predetermined ones of the beams so that only frequency components that will generate the desired optical interference fringes are allowed to pass. Additional optical components receive the passed beams and redirect them to overlap at an output plane to form interference fringes. These interference fringes can have a very high spatial frequency so that extremely fine lines or small objects, including text and graphics, can be recorded.
16 Holographic image generation US15117730 2014-02-18 US09915920B2 2018-03-13 Hyun Oh Oh
Briefly stated, technologies are generally described for providing a computer-generated holography (CGH). Example devices/systems described herein may use one or more of a server device and/or a client device. The server device may be configured to provide CGH data to a client device including a holographic image display unit. The server device may receive information on the holographic image display unit from the client device, calculate the CGH data from three-dimensional image data and the information on the holographic image display unit, and/or transmit the CGH data to the client device. The client device may be configured to provide a holographic image. The client device may reconstruct the holographic image on the holographic image display unit using CGH data and a reconstruction beam, transmit information on the holographic image display unit to the server device, and/or receive the CGH data from the server device.
17 HOLOGRAPHIC IMAGE GENERATION US15117730 2014-02-18 US20170248915A1 2017-08-31 Hyun Oh OH
Briefly stated, technologies are generally described for providing a computer-generated holography (CGH). Example devices/systems described herein may use one or more of a server device and/or a client device. The server device may be configured to provide CGH data to a client device including a holographic image display unit. The server device may receive information on the holographic image display unit from the client device, calculate the CGH data from three-dimensional image data and the information on the holographic image display unit, and/or transmit the CGH data to the client device. The client device may be configured to provide a holographic image. The client device may reconstruct the holographic image on the holographic image display unit using CGH data and a reconstruction beam, transmit information on the holographic image display unit to the server device, and/or receive the CGH data from the server device.
18 APPARATUS FOR DETECTING A 3D STRUCTURE OF AN OBJECT US14717282 2015-05-20 US20150338209A1 2015-11-26 Alexander Knüttel
Apparatus for detecting a 3D structure of an object, comprising at least three laser emitters and a beam splitter that splits the laser radiation of the laser emitters into a reference radiation and an illumination radiation. The illumination radiation strikes the object to be measured, is reflected by the object as object radiation and interferes with the reference radiation. A detector receives the interference patterns formed from the interference of the reference and object radiation and an analysis unit analyzes the interference patterns. At least two of the laser emitters emit laser radiation in the invisible range and the analysis unit detects the object in three dimensions based on the interference patterns of the invisible laser radiation. At least one of the laser emitters emits colored laser radiation and the analysis unit deduces the object's color based on the intensity of the colored object radiation reflected by the object.
19 LIGHT SHIFT COMPENSATION DEVICE OF IMAGE COMPOSITION DEVICE FOR MULTICOLOR HOLOGRAPHY US12940107 2010-11-05 US20110261154A1 2011-10-27 Jui-Tsung CHANG
A light shift compensation device of an image composition device for the multicolor holography utilizes a light source provider to emit a beam split into an object beam and a reference beam via a beamsplitting unit. The object beam, shined on a projecting unit, is transformed into an object wave for projecting two-D images of the object on a negative. The reference beam is transformed into a reference wave by a compensating unit to adjust the irradiation angle and thence project on the negative. Interference fringes formed by the object wave and the reference wave projecting on the negative record two-D images of the object on the negative. The two-D images projected by the object wave are separated into the red image, the green image, and the blue image, which are directed to the three fundamental colors. The image of one single color is adopted for being recorded on the negative each time. The images of the three fundamental colors are successively processed by three times of double-exposure on the negative to compose a true color image. The angle of projection of the reference wave is adjusted by the compensating unit, so that the angles of diffraction of the green image and the blue image recorded on the negative are changed.
20 Biometric Hologram Based Data Verification Methods And Apparatus US10574205 2004-10-01 US20070206248A1 2007-09-06 David Winterbottom; John Wiltshire; Ben Bowmaker
This invention generally relates to methods and apparatus for verifying data, and more particularly to holographic data carriers and apparatus for creating such data carriers, and to methods of verifying data stored on holographic data carriers. A data carrier comprising: a hologram storing data to reproduce an image of a portion of a human body characteristic of an individual; and a second data bearing device; and wherein data stored by said second data bearing device is verifiable using data stored in said hologram.
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